code: def _canonicalize(self, parents):
      super()._canonicalize(parents)
      if "://" not in self.host:
          self.host = "https://" + self.host
  
file_path: nni/nni/experiment/config/training_services/openpai.py
imports: from dataclasses import dataclass
  from pathlib import Path
  from typing import Dict, Optional, Union
  from typing_extensions import Literal
  from ..training_service import TrainingServiceConfig
  from ..utils import PathLike
label_desc: Use image node_id 1 for calling the OpenpaiConfig obj's underlying member method code with example usage: obj._canonicalize(parents) without return types